6649337 has 2 divisors, whose sum is σ = 6649338. Its totient is φ = 6649336.

The previous prime is 6649333. The next prime is 6649367. The reversal of 6649337 is 7339466.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3625216 + 3024121 = 1904^2 + 1739^2 .

It is a cyclic number.

It is not a de Polignac number, because 6649337 - 2² = 6649333 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6649337.

It is not a weakly prime, because it can be changed into another prime (6649333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3324668 + 3324669.

It is an arithmetic number, because the mean of its divisors is an integer number (3324669).

Almost surely, 2^6649337 is an apocalyptic number.

It is an amenable number.

6649337 is a deficient number, since it is larger than the sum of its proper divisors (1).

6649337 is an equidigital number, since it uses as much as digits as its factorization.

6649337 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81648, while the sum is 38.

The square root of 6649337 is about 2578.6308382551. The cubic root of 6649337 is about 188.0439858600.

It can be divided in two parts, 664 and 9337, that added together give a palindrome (10001).

The spelling of 6649337 in words is "six million, six hundred forty-nine thousand, three hundred thirty-seven".